What This Filter Actually Does
This sits behind the dash or under the hood on M2 Business Class trucks, cleaning the air that comes through the HVAC before it hits your blower motor and the cab. Dust, pollen, road grit - all the stuff that clogs airflow and makes your defroster useless in July.
Freightliner ran this same cabin filter across the M2 lineup from 2003 up through current production, so the fitment window is wide. Doesn't mean every M2 in a yard takes the exact same part - trim packages and cab configs can change the housing size slightly.
Bottom line: it's a wear item, cheap insurance, and one of those things guys forget until the cab starts smelling like a locker room.
Why All These Numbers Cross
36000006 is the number that gets thrown around most at the counter - that's the Freightliner/Alliance part number, and Alliance also stamps it as N10G 36000006 or N10G 91595 depending on packaging batch. Same filter, different box label.
Baldwin makes this filter too, under PA5359 and sometimes PA10188 depending on their production run. Donaldson's version is P614547. All of these are built to the same dimensional spec - same length, width, depth, and seal pattern - because they're all filling the same slot in the same HVAC housing.
Where guys get burned is assuming every Freightliner cab is identical. Before you order, pull the old filter and read the number stamped on the frame, or check your VIN against the parts book. Doesn't take five minutes and saves you a return shipment.
Ordering From PartStop
We keep AF26427 in stock here in Tacoma - if you're local, call ahead and it's usually ready same day. If you're not local, we ship nationwide and it typically lands in a couple days.
Comes with our standard 6+ month warranty. This is an aftermarket filter, not a Freightliner-branded part, so if you're dead set on factory-only for warranty reasons on a newer truck, ask us first and we'll steer you straight.
Otherwise this is a straightforward cross-reference swap that fleets run all day long. Grab the old part number or your VIN before you call and we'll get you sorted fast.
AF26427 Cross-Reference & Interchange Numbers
These manufacturer and aftermarket numbers commonly cross-reference to AF26427. Use them to identify the part — then confirm the exact fit by VIN or the number stamped on your old unit before you order. An interchange is a starting point, not a fitment guarantee.
| Brand / Line | Cross-Reference Numbers |
|---|---|
| Baldwin | PA5359, PA10188 |
| Cross-Reference | 36000006 |
| Alliance | ABPN10G36000006, N10G 91595, N10G 36000006 |
| Donaldson | P614547 |
Frequently asked questions
Does 36000006 fit my Freightliner M2?
Most likely, since that's the factory number this filter cross-references to. But M2 covers a lot of years and configs, so check the number on your old filter or run your VIN by us before ordering - takes a minute and saves a return.
Is this the same as the Baldwin PA5359 filter?
Same fitment, same footprint - it's the same filter slot, different brand stamping it. Baldwin also runs PA10188 on some batches. If PA5359 came out of your truck, AF26427 will drop right in, but always confirm against what you pulled.
How often should I swap this filter out?
Depends on your routes - dusty gravel or ag work, check it every oil change. Mostly highway miles, once a year or 12,000-15,000 miles is a decent rule. If your defroster's weak or the cab smells musty, that's your filter talking.
Not sure it fits? We check before you pay.
Run your VIN and we’ll match parts to your exact truck, or call the counter — a person who knows trucks verifies fitment by OEM number before the order ships. No wrong-box returns.
More cross-reference guides
Need the part, not just the reading?
Every part below is a Premium Quality aftermarket Direct Replacement with published OEM cross-reference numbers, a 6+ month warranty and same-business-day shipping from Tacoma, WA. Not sure it fits? Run your VIN — or call and a person who knows trucks will verify fitment before you pay.